No high beams on 1999 Dodge Caravan; low beams work fine

1992 Dodge Grand Caravan V6 headlight switch no relay Circuit

Your van has dual diligent headlamp bulbs, that means each headlight has one bulb that serves as high beam and low beam. What has most likely happened is on one side the low beam filament has burnt out, and on the other side the high beam filiment has burnt out. The daytime running lights are just the high beam filament running on reduced power, so if the high beam doesn't work on one side, that same side will have no daytime running light. Replace both headlamp bulbs with matching, good quality bulbs.

On the van you have a high beam fuse and relay. On the low beam you also have a fuse and relay. Check the fuse/relay panel for a blown fuse controlling the low beam lights. If you do not find a blown fuse have some one to turn the key on and turn on the high beam lights> During this time locate the low beam headlight relay and place your finger on top of relay, have the other person to switch from high beam to low beam lights. You should feel a click in the relay when they make the switch from high to low beam. If not replace the relay and the problem should go away. Hope this will help you.

IF BULBS ARE OKAY.MORE LIKELY DIMMER SWITCH BAD.

Hi lo switch

I do not know if you have the 3.0L V6, 3.3L V6, 3.3L Flex-Fuel V6; or the 3.8L V6 Engines; however I have included all below:

For the 3.0L V6:
Firing Order:
1-2-3-4-5-6
Cylinders:
.....(back)
1......3.......5
2......4.......6
.....(front)
Distributor:
...(back)
......1
3..........2
5..........6
......4
...(front)

For the 3.3L AND 3.8L V6
Firing Order:
1-2-3-4-5-6
Cylinders:
.....(back)
1......3.......5
2......4.......6
....(front)
Ignition Coil:
(back)
5..1..3
2..4..6
(front)

For the 3.3L Flex-Fuel V6:
Firing Order:
1-2-3-4-5-6
Cylinders:
....(back)
1.....3......5
2.....4......6
....(front)
Ignition Coil:
(back)
6..3
4..1
5..2
(front)

Low beam is purple wire with red stripe
High beam is red wire with orange stripe.

Fuse 22 and fuse 23 are left and right low beam headlamp fuses located in the PDC. 23 and 24 are high beam fuses. There is also a low beam and a high beam relay in PDC as well. If no headlights work I would check for main switch or multifuction switch (wiper/high beam) since each light has its own fuse and relay.

replace the headlight bulbs. Usually when the bulbs blow out the low beam blows out first, but the high beams still work. If you want and need both low and high beams to work then replace the headlight bulbs with brand new ones and I garauntee that both low and high beams will work

Check the headlight switch to make sure that the connections or internal connections aren't corroded. This was a major problem for older fords, so it would be good to check it anyway.